RateMyTeachers.com (RMT) is a review site used to rate elementary, secondary school and college teachers and schools. Participants are asked to rate their teachers on a scale of 1 to 5 in the categories of easiness, helpfulness, knowledge, and clarity, with the latter two factoring into an "overall quality" score. Individuals can also write brief comments on their experiences with the teachers. As of April 2010, over eleven million teachers had been graded on the website.